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  <title>Returns a single column from a row in the result set</title>
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 <body class="docs"><div id="layout">
  <div id="layout-content"><div id="function.db2-result" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">db2_result</h1>
  <p class="verinfo">(PECL ibm_db2 &gt;= 1.0.0)</p><p class="refpurpose"><span class="refname">db2_result</span> &mdash; <span class="dc-title">
   Returns a single column from a row in the result set
  </span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.db2-result-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>db2_result</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$stmt</code></span>
   , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$column</code></span>
   ) : <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span></div>



  <p class="para rdfs-comment">
   Use <span class="function"><strong>db2_result()</strong></span> to return the value of a specified
   column in the current row of a result set. You must call
   <span class="function"><a href="db2_fetch_row.html" class="function">db2_fetch_row()</a></span> before calling
   <span class="function"><strong>db2_result()</strong></span> to set the location of the result set
   pointer.
  </p>

 </div>

 <div class="refsect1 parameters" id="refsect1-function.db2-result-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">stmt</code></dt>

      <dd>

       <p class="para">
        A valid <em>stmt</em> resource.
       </p>
      </dd>

     
    
     <dt>
<code class="parameter">column</code></dt>

      <dd>

       <p class="para">
        Either an integer mapping to the 0-indexed field in the result set, or
        a string matching the name of the column.
       </p>
      </dd>

     
   </dl>

  </p>
 </div>

 <div class="refsect1 returnvalues" id="refsect1-function.db2-result-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the value of the requested field if the field exists in the result
   set. Returns NULL if the field does not exist, and issues a warning.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.db2-result-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-1271">
    <p><strong>Example #1 A <span class="function"><strong>db2_result()</strong></span> example</strong></p>
    <div class="example-contents"><p>
     The following example demonstrates how to iterate through a result set
     with <span class="function"><a href="db2_fetch_row.html" class="function">db2_fetch_row()</a></span> and retrieve columns from the
     result set with <span class="function"><strong>db2_result()</strong></span>.
    </p></div>
    <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$sql&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'SELECT&nbsp;name,&nbsp;breed&nbsp;FROM&nbsp;animals&nbsp;WHERE&nbsp;weight&nbsp;&lt;&nbsp;?'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$stmt&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">db2_prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$sql</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">db2_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">,&nbsp;array(</span><span style="color: #0000BB">10</span><span style="color: #007700">));<br />while&nbsp;(</span><span style="color: #0000BB">db2_fetch_row</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$name&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">db2_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$breed&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">db2_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'BREED'</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;print&nbsp;</span><span style="color: #DD0000">"</span><span style="color: #0000BB">$name</span><span style="color: #DD0000">&nbsp;</span><span style="color: #0000BB">$breed</span><span style="color: #DD0000">"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
cat Pook
gold fish Bubbles
budgerigar Gizmo
goat Rickety Ride
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.db2-result-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="db2_fetch_array.html" class="function" rel="rdfs-seeAlso">db2_fetch_array()</a> - Returns an array, indexed by column position, representing a row in a result set</span></li>
    <li class="member"><span class="function"><a href="db2_fetch_assoc.html" class="function" rel="rdfs-seeAlso">db2_fetch_assoc()</a> - Returns an array, indexed by column name, representing a row in a result set</span></li>
    <li class="member"><span class="function"><a href="db2_fetch_both.html" class="function" rel="rdfs-seeAlso">db2_fetch_both()</a> - Returns an array, indexed by both column name and position, representing a row in a result set</span></li>
    <li class="member"><span class="function"><a href="db2_fetch_object.html" class="function" rel="rdfs-seeAlso">db2_fetch_object()</a> - Returns an object with properties representing columns in the fetched row</span></li>
    <li class="member"><span class="function"><a href="db2_fetch_row.html" class="function" rel="rdfs-seeAlso">db2_fetch_row()</a> - Sets the result set pointer to the next row or requested row</span></li>
   </ul>
  </p>
 </div>


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